import threading
import time

def sing(song):
    while True:
        print(f"正在唱：{song}")
        time.sleep(1)

def dance(dancer):
    while True:
        print(f"正在跳：{dancer}")
        time.sleep(1)

if __name__ == '__main__':
    t1 = threading.Thread(target=sing, args=("青花瓷",))
    t2 = threading.Thread(target=dance, kwargs={"dancer": "甩葱歌"})
    
    t1.start()
    t2.start()